Lufft WS800-UBM - Rain Gauge Maintenance

Operating Manual Smart Weather Sensor
42 G. Lufft Mess- und Regeltechnik GmbH, Fellbach, Germany
Figure 22: WS601-UMB
with removed funnel
12.1 Maintenance of the Rain Gauge
The function of the rain gauge will be significantly influenced by pollution of the funnel or the
tipping bucket mechanism. Regular check and, if necessary, cleaning is required. The
maintenance interval depends very much on local conditions and also on seasons (leaves,
pollen, etc.) and therefore cannot be exactly defined here (it may be in the range of weeks).
 Only clean when obviously polluted
 Avoid moving the tipping mechanism (otherwise wrong counts will occur)
 Use water, soft cloth and / or a soft brush for cleaning
 Unlock funnel by turning it to the left and lift it off
 Clean funnel, specially the sieve slots
 Check the inside of the rain gauge module for pollution, especially for spider webs
and insects, if necessary, clean it
 Check tipping bucket for pollution, if necessary wash carefully with clean water.
Caution: each movement of the bucket generates a counting pulse and thus may
cause faulty precipitation amounts
 Check water drain, clean if necessary
 Put funnel back in place and lock it by turning it to the right